Stewart shielded pcb communication jacks stewart ss 6488s a nf shielded communication pcb jack socket 8 contacts 8 positions 1 port cat5 category phosphor bronze contact material gold contact plating polycarbonate housing material 30v ac voltage rating 15a current rating tin plated shield high levels of emi protection ul csa approved stewart ss 6488s a nf 88 pcb jack shielded